fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 ------------[ cut here ]------------ slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] alloc_buffer_head+0x20/0x110 fs/buffer.c:3445 WARNING: CPU: 0 PID: 9458 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163 alloc_page_buffers+0xb3/0x1f0 fs/buffer.c:874 Kernel panic - not syncing: panic_on_warn set ... grow_dev_page fs/buffer.c:1025 [inline] grow_buffers fs/buffer.c:1077 [inline] __getblk_slow+0x2d6/0x7a0 fs/buffer.c:1104 __getblk_gfp fs/buffer.c:1383 [inline] __bread_gfp+0x206/0x2e0 fs/buffer.c:1428 sb_bread include/linux/buffer_head.h:309 [inline] fat_fill_super+0x2f9/0x31b0 fs/fat/inode.c:1637 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x44e51a RSP: 002b:00007f069ce4eb28 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f069ce4eb30 RCX: 000000000044e51a RDX: 0000000020000440 RSI: 0000000020000100 RDI: 00007f069ce4eb30 RBP: 0000000000000007 R08: 00007f069ce4eb70 R09: 6f6f6c2f7665642f R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 0000000000000000 R14: 00007f069ce4eb70 R15: 00007f069ce4f6d4 CPU: 0 PID: 9458 Comm: syz-executor438 Not tainted 4.14.203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x4b kernel/panic.c:547 report_bug+0x208/0x249 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163 RSP: 0018:ffff888091d17bc8 EFLAGS: 00010297 RAX: ffff88809b9cc440 RBX: 0000000000000000 RCX: 1ffff1101373999e RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880b1dcfbb0 RBP: ffff888095d4a740 R08: ffffffff8b9bd4c0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff88809b9cc440 R12: ffff8880b1dcf700 R13: ffffffff890abed0 R14: ffffffff88f44d80 R15: dffffc0000000000 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 sget_userns+0x9c4/0xc10 fs/super.c:537 sget+0xd1/0x110 fs/super.c:572 mount_bdev+0xcd/0x360 fs/super.c:1107 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x44e51a RSP: 002b:00007f069ce4eb28 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f069ce4eb30 RCX: 000000000044e51a RDX: 0000000020000440 RSI: 0000000020000100 RDI: 00007f069ce4eb30 RBP: 0000000000000007 R08: 00007f069ce4eb70 R09: 6f6f6c2f7665642f R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 0000000000000000 R14: 00007f069ce4eb70 R15: 00007f069ce4f6d4 CPU: 1 PID: 9449 Comm: syz-executor438 Not tainted 4.14.203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] alloc_buffer_head+0x20/0x110 fs/buffer.c:3445 alloc_page_buffers+0xb3/0x1f0 fs/buffer.c:874 grow_dev_page fs/buffer.c:1025 [inline] grow_buffers fs/buffer.c:1077 [inline] __getblk_slow+0x2d6/0x7a0 fs/buffer.c:1104 __getblk_gfp fs/buffer.c:1383 [inline] __bread_gfp+0x206/0x2e0 fs/buffer.c:1428 sb_bread include/linux/buffer_head.h:309 [inline] fat_fill_super+0x2f9/0x31b0 fs/fat/inode.c:1637 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x44e51a RSP: 002b:00007f069ce2db28 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f069ce2db30 RCX: 000000000044e51a RDX: 0000000020000440 RSI: 0000000020000100 RDI: 00007f069ce2db30 RBP: 0000000000000006 R08: 00007f069ce2db70 R09: 6f6f6c2f7665642f R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000005 R13: 0000000000000000 R14: 00007f069ce2db70 R15: 00007f069ce2e6d4 Kernel Offset: disabled Rebooting in 86400 seconds..